Maternal Breath-Holding and the Valsalva Maneuver: Methods to Overcome Fetal Breathing Movements During Doppler Sonography
| Autor: | Meyberg-Solomayer, Gabriele C., Wallwiener, Diethelm, Solomayer, Erich |
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| Zdroj: | In Ultrasound in Medicine & Biology 2007 33(10):1586-1591 |
| Databáze: | ScienceDirect |
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